Improved amalgamator and ore-mill



Patented May 13, 18.62.y

UNITED STATES lPATENT OFFICE.

ALMARIN PAUL, CF SILVERv CITY, NEVADA TERRITORY.

IMPROVED AMALGAM-ATOR AND ORE-MILL.

Specification forming part of Letters Patent No. 35,253, dated May 13, 1862.

To all whom it may concern,.-

Be it known that I, ALMARIN B. PAUL, of Silver City, in the Territory of Nevada, have invented a new and Improved Muller for Amalgamating-Pans; and l do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure l is a plan or top view of my invention; Fig. 2, a section of same, taken in Vthe line o: Fig. l; Figs. 3 and 4, detached inverted plans of two of the pulverizing-arms; Fig. 5, a transverse section of a pulverizingarm, taken in the line y y, Fig. l; Fig. 6, a transverse section of another pulverizin garm, taken in the line z e', Fig. l; Fig. 7, a transverse section of Fig. 2, taken in the line Similar letters of reference indicate corresponding parts in the several. iigures.

The object of this invention isto obtain a simple and efficient device for pulverizing the pulp of gold and silver bearing quartz and separating and amalgamating the gold or silver contained therein.

The invention has a rotary motion, and is designed to be used in connection with an ordinary am algamatin g pan or vessel into which the pulp flows or is forced, the invention operating as a pulverizer or muller, and also as an amalgamator, as hereinafter fully shown and described, and performing the work in a very thorough and expeditious manner.

To enable those skilled in the art to fully understand and construct my invention, I

will proceed to describe it.

A represents an annular hub, to which four arms, B B B B', are attached. These arms are of iiat form, but curved, and gradually in* crease in width from their inner to their outer ends, as shown clearly in Figs. l, 3, `and 4. Each arm has oblong slots a` made through it in an oblique direction, as shown in Figs. 5 and 6, and the lower back edges of said slots are rounded, as shown at b. The under` surfaces or faces of the arms B B B B are grooved in curved form, as shown at ax in Figs. 3 and 4, the curves extending obliquely across the faces of the arms and resembling the furrows of `a millstone. (See Fig. 2, in which a transverse direction, the lower edge projecting in front of the upper edge, as shown clearly in Fig. 6. In Vother respects, this arm B is like the others, B. The front edges of all the arms are concave longitudinally, while their back edges are slightly convex.

To the annular hub A there are attached radial arms C. These arms are arranged in pairs, and they are between the arms B B B B', as shown clearly in Fig. l. Each arm C is provided with two rows of vertical pins, ff', one row, j'being in line with the centers of the spaces between the other, f', as will be seen by referring to Fig. l.

-Each arm C has a series of verticalcopper plates, D, attached to it by hinges or joints g, said hinges or joints being formed by having eyes on the plates Iitted on pins or the arms, as shown in '7. Other modes of connection, however, maybe employed. The arms and hub of the muller may be of cast-iron.

The operation of the device is as follows: The hub A is placed on a vertical rotating shaft, and the device is iitted within an ordinary amalgamating-pan. Motion is communicated to the shaft by any convenient power. The arms B B B la serve as pulverizers,l and reduce to a proper degree of fineness the pulp whichis placed in the pan with a requisite amount of quicksilver. The slots a admit of the pulp passing up through them and cause the device to rotate freely. The arms Bwork or pass entirely over the pulp, while the arm 3 scrapes it up from the bottom of the pan, owing to the inclination of its edge e. The pins ff of the arms C serve as stirrers, and cause the pulp and quicksilver to be brought in contact withv each other, while the copper plates D, which may be set or adjusted more or less obliquely, serve to render the amalgamation thorough and materially expedite the process.

Having' thus described my 11Vention,WhatI hub, A, which also has radial arms C, oonelaim as new, and desire to secure hy Letters neeted to it, provided with pins ff', and ad- Patent, isjnstable upright copper plates D, substan- A rotating` lnuller for alnalgalnatng-pans, tally as described. formed of a Series of curved flat arms, B B B B', provided with slots af, and having curved XVtnesses: grooves a* in their under Surfaces or face Sides, Said arms being attached to an annular ALMARIN B. PAUL.

WM. H. RHODES, D. L. R. BLISS. 

